28916850 has 48 divisors (see below), whose sum is σ = 72084672. Its totient is φ = 7671360.

The previous prime is 28916843. The next prime is 28916851. The reversal of 28916850 is 5861982.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 28916799 and 28916808.

It is not an unprimeable number, because it can be changed into a prime (28916851) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39084 + ... + 39816.

It is an arithmetic number, because the mean of its divisors is an integer number (1501764).

Almost surely, 2^28916850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28916850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36042336).

28916850 is an abundant number, since it is smaller than the sum of its proper divisors (43167822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28916850 is a wasteful number, since it uses less digits than its factorization.

28916850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011 (or 1006 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 28916850 is about 5377.4389815227. The cubic root of 28916850 is about 306.9377656814.

The spelling of 28916850 in words is "twenty-eight million, nine hundred sixteen thousand, eight hundred fifty".